Cellulose nanofiber-containing aqueous dispersion

    公开(公告)号:US12180344B2

    公开(公告)日:2024-12-31

    申请号:US17049884

    申请日:2019-04-15

    Inventor: Junichi Tsuzuki

    Abstract: This invention relates to providing a resin composition and a resin molded article having sufficient mechanical properties and thermal properties, and also having excellent wear resistance and moldability when in use. This invention provides a cellulose nanofiber-containing aqueous dispersion including (A) cellulose nanofibers, (B) a surface treatment agent, and water. In one embodiment, (B) a surface treatment agent has an HLB value of 0.1 or greater but less than 8.0. This invention provides a dispersion liquid including (B) a surface treatment agent, (D) a binder component, and water, wherein (B) the surface treatment agent is a water-soluble polymer having a hydrophilic segment and a hydrophobic segment, and having a number average molecular weight of 200 to 30,000, and (D) the binder component is polyurethane. This invention provides a cellulose nanofiber resin composition including (A) cellulose nanofibers, (B) a surface treatment agent, and (F) a thermoplastic resin.

    Composite sound-absorbing material

    公开(公告)号:US12179467B2

    公开(公告)日:2024-12-31

    申请号:US17918218

    申请日:2021-05-18

    Abstract: Provided is a composite sound-absorbing material that can exhibit sound absorption properties in a broad range of low frequencies, intermediate frequencies, and high frequencies even in a low-basis-weight region having low thickness. The composite sound-absorbing material according to the present invention is configured from two or more layers including a base material and a skin material, the skin material being positioned on the outermost layer, wherein the composite sound-absorbing material is characterized in that the ratio (skin material:base material) of the surface area (m2/m2) per unit area of the skin material and the surface area (m2/m2) per unit area of the base material is at least 1:5 and less than 1:40.

    Multilayer Porous Membrane
    8.
    发明申请

    公开(公告)号:US20240429559A1

    公开(公告)日:2024-12-26

    申请号:US18618866

    申请日:2024-03-27

    Abstract: The object of the disclosure is to provide a multilayer porous membrane that can improve heat resistance (ability to inhibit heat shrinkage) and strength when the thickness of a nonaqueous electrolyte solution battery separator has been decreased, while inhibiting friction on the separator surface as a whole, and that can also increase energy density in a nonaqueous electrolyte solution battery, as well as a nonaqueous electrolyte solution battery separator and a nonaqueous electrolyte solution battery comprising the same.

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